130 lines
4.1 KiB
Java
130 lines
4.1 KiB
Java
/* -*-mode:java; c-basic-offset:2; indent-tabs-mode:nil -*- */
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/*
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Copyright (c) 2002-2015 ymnk, JCraft,Inc. All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in
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the documentation and/or other materials provided with the distribution.
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3. The names of the authors may not be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
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INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JCRAFT,
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INC. OR ANY CONTRIBUTORS TO THIS SOFTWARE BE LIABLE FOR ANY DIRECT, INDIRECT,
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INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
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OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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package com.jcraft.jsch;
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class UserAuthNone extends UserAuth{
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private static final int SSH_MSG_SERVICE_ACCEPT= 6;
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private String methods=null;
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public boolean start(Session session) throws Exception{
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super.start(session);
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// send
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// byte SSH_MSG_SERVICE_REQUEST(5)
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// string service name "ssh-userauth"
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packet.reset();
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buf.putByte((byte)Session.SSH_MSG_SERVICE_REQUEST);
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buf.putString(Util.str2byte("ssh-userauth"));
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session.write(packet);
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if(JSch.getLogger().isEnabled(Logger.INFO)){
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JSch.getLogger().log(Logger.INFO,
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"SSH_MSG_SERVICE_REQUEST sent");
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}
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// receive
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// byte SSH_MSG_SERVICE_ACCEPT(6)
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// string service name
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buf=session.read(buf);
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int command=buf.getCommand();
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boolean result=(command==SSH_MSG_SERVICE_ACCEPT);
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if(JSch.getLogger().isEnabled(Logger.INFO)){
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JSch.getLogger().log(Logger.INFO,
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"SSH_MSG_SERVICE_ACCEPT received");
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}
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if(!result)
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return false;
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byte[] _username=null;
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_username=Util.str2byte(username);
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// send
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// byte SSH_MSG_USERAUTH_REQUEST(50)
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// string user name
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// string service name ("ssh-connection")
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// string "none"
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packet.reset();
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buf.putByte((byte)SSH_MSG_USERAUTH_REQUEST);
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buf.putString(_username);
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buf.putString(Util.str2byte("ssh-connection"));
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buf.putString(Util.str2byte("none"));
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session.write(packet);
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loop:
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while(true){
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buf=session.read(buf);
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command=buf.getCommand()&0xff;
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if(command==SSH_MSG_USERAUTH_SUCCESS){
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return true;
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}
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if(command==SSH_MSG_USERAUTH_BANNER){
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buf.getInt(); buf.getByte(); buf.getByte();
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byte[] _message=buf.getString();
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byte[] lang=buf.getString();
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String message=Util.byte2str(_message);
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if(userinfo!=null){
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try{
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userinfo.showMessage(message);
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}
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catch(RuntimeException ee){
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}
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}
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continue loop;
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}
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if(command==SSH_MSG_USERAUTH_FAILURE){
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buf.getInt(); buf.getByte(); buf.getByte();
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byte[] foo=buf.getString();
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int partial_success=buf.getByte();
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methods=Util.byte2str(foo);
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//System.err.println("UserAuthNONE: "+methods+
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// " partial_success:"+(partial_success!=0));
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// if(partial_success!=0){
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// throw new JSchPartialAuthException(new String(foo));
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// }
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break;
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}
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else{
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// System.err.println("USERAUTH fail ("+command+")");
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throw new JSchException("USERAUTH fail ("+command+")");
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}
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}
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//throw new JSchException("USERAUTH fail");
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return false;
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}
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String getMethods(){
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return methods;
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}
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}
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